/Engine/Source/Runtime/SlateCore/Public/Fonts/FontCache.h
Performs text shaping on the overflow glyph sequence for a given font. The overflow sequence is used to replace characters that are clipped
FShapedGlyphSequenceRef ShapeOverflowEllipsisText ( const [FSlateFontInfo](API\Runtime\SlateCore\Fonts\FSlateFontInfo) & InFontInfo, const float InFontScale )